| A B M Enterprises, Inc. | New Orleans | LA | $0 |
| Acha Construction LLC | Elko | NV | $0 |
| Aci Northwest, Inc. | Dalton Gardens | ID | Subcontractor |
| Advanced Blasting Services, LLC | Wasilla | AK | Subcontractor |
| Advanced Construction Techniques Inc. | Wilmington | DE | $0 |
| Advanced Construction Techniques Ltd. | King | ON | $0 |
| Advanced Geosolutions, Inc. | Lake Forest | CA | Subcontractor |
| Aktor Qatar WLL | Doha | | $0 |
| Alans Excavating Inc. | Augusta | KS | $0 |
| Allied Technical Services Inc. | Cincinnati | OH | Subcontractor |
| Allison Park Contractors, Inc. | Gibsonia | PA | $0 |
| Allstar Construction Group Inc. | Richland | WA | $0 |
| American Deep Foundation, Inc. | Statham | GA | Subcontractor |
| American Railroad Industries, Inc. | Atlanta | GA | Subcontractor |
| American Track LLC | Fort Worth | TX | Subcontractor |
| Amorient Contracting, Inc. | Tamuning | GU | Subcontractor |
| Am-sher, A Limited Liability Company | Enterprise | AL | Subcontractor |
| Apex Environmental And Engineering Inc. | Oroville | CA | Subcontractor |
| Arb, Inc. | Irvine | CA | Subcontractor |
| Arbor Tree And Land, Inc. | West Palm Beach | FL | $0 |
| Archer Western / Alberici Joint Venture | Chicago | IL | $0 |
| Armstrong Drilling Inc. | Murrysville | PA | $0 |
| Ash Mountain Inc. | Harlan | KY | $0 |
| A Teichert & Son Inc. | Sacramento | CA | Subcontractor |
| Atlas Foundation Co. LLC | Maple Grove | MN | Subcontractor |
| Ats Drilling, Inc. | Haltom City | TX | Subcontractor |
| Award Construction, Inc. | Ferndale | WA | $0 |
| Axioo Construction Inc. | Mulberry | AR | $0 |
| Baker Pile Driving And Site Work, LLC | Madisonville | LA | Subcontractor |
| B And A Construction Co. Inc. | Caryville | TN | $0 |
| B & D Equipment Company, Inc. | Clinton | TN | $0 |
| Beams Contracting Inc. | Beech Island | SC | Subcontractor |
| Beard Construction Group LLC | Port Allen | LA | $0 |
| Beaty Construction Inc. | Boggstown | IN | Subcontractor |
| Bechtel Environmental, Inc. | Reston | VA | $0 |
| Bechtel Infrastructure Corporation | Reston | VA | $0 |
| Bella Contractors LLC | Houma | LA | Subcontractor |
| Bickerstaff Brothers, Inc. | Batesville | MS | $0 |
| Big Hat Spider Hoe LLC | Montrose | WV | $0 |
| Blakeslee Arpaia Chapman, Inc. | Branford | CT | Subcontractor |
| Blue Diving & Salvage LLC | Mobile | AL | $0 |
| Bolton Enterprise Ltd. | Kailua Kona | HI | $0 |
| Brennan Bros Contracting LLC | Old Bridge | NJ | $0 |
| Brice Incorporated | Fairbanks | AK | Subcontractor |
| Bright Masonry, Incorporated | Fairfax | VA | Subcontractor |
| Bronco Industrial Services, LLC | Napoleonville | LA | Subcontractor |
| Brooks Dredging And Marine Construction, Inc. | Harkers Island | NC | $0 |
| B.r. Services, LLC | Tomball | TX | $0 |
| Bryson Enterprises, Ltd. | Highlands | NC | $0 |
| Brystar Contracting Inc. | Beaumont | TX | $0 |
| BTT Marine Construction Company, LLC | East Boston | MA | Subcontractor |
| Bullock Construction Inc. | Easton | MD | Subcontractor |
| Bulltrack Construction Company, Inc. | Marysville | CA | Subcontractor |
| Bunce Construction Inc. | Raeford | NC | Subcontractor |
| Cajun Industries LLC | Baton Rouge | LA | $0 |
| Calex Engineering Inc. | Newhall | CA | Subcontractor |
| Caliber Construction Alaska LLC | Anchorage | AK | Subcontractor |
| Camo Construction Company, Inc. | Vidalia | LA | $0 |
| Canyon Construction Company | Elko | NV | $0 |
| Carl Bolander & Sons, LLC | Saint Paul | MN | $0 |
| Cascade Dive Company | Pasco | WA | $0 |
| CDM Constructors Inc. | Denver | CO | $0 |
| Central Civil Construction Co. | Medley | FL | Subcontractor |
| Central Contracting, Inc. | Saint Albans | WV | $0 |
| C G & B Enterprises Inc. | Henderson | NV | $0 |
| Cheniere Construction, Inc. | Mandeville | LA | $0 |
| Chumley's Inc. | Nikiski | AK | $0 |
| City Of Houston | Houston | TX | $0 |
| Civic Enterprises, Inc. | Valley Center | CA | Subcontractor |
| Clean Water Consultants Inc. | Winder | GA | $0 |
| Clear Robert Coal Corp. | La Follette | TN | $0 |
| Coastal Gunite Construction Company | Cambridge | MD | $0 |
| Coastal Louisiana Resource, LLC | Bellaire | TX | $0 |
| Colom Construction Co. Inc. | Ripley | MS | $0 |
| Comer Construction, Inc. | Forest Hill | MD | $0 |
| Compass Engineering & Construction Services LLC | Albuquerque | NM | Subcontractor |
| Complete Sitework Services LLC | East Dublin | GA | Subcontractor |
| Concord Excavating Enterprises Inc. | Homer Glen | IL | Subcontractor |
| Constructora Santiago II Corp. | Trujillo Alto | PR | $0 |
| Continental Rails Inc. | Hattiesburg | MS | $0 |
| Copper River Infrastructure Services LLCChantilly, VA · UEI GTW8VZF1NCL1 | Chantilly | VA | Subcontractor |
| Copper River Infrastructure Services LLCDenver, CO · UEI KEA5BTBXFEP3 | Denver | CO | $0 |
| C P 3 Enterprises Inc. | Maud | OK | $0 |
| Craft Contracting | Riverside | CA | Subcontractor |
| Crisp & Crisp Inc. | Robbinsville | NC | $0 |
| Cs Beatty Construction, LLC | Birmingham | AL | Subcontractor |
| Culbertson Marine Construction, Inc. | Anacortes | WA | Subcontractor |
| Curranco LLC | Harvey | LA | Subcontractor |
| Curtis Excavating, Inc. | Portage | WI | $0 |
| Cwa Development, Inc. | Townsend | GA | $0 |
| C. White Marine, Inc. | Danvers | MA | $0 |
| C. W. Purpero, Inc. | Oak Creek | WI | $0 |
| David Crye General Engineering Contractor Inc. | Morro Bay | CA | Subcontractor |
| Dean Equipment Inc. | Harvey | LA | $0 |
| Deepocean US LLC | Houston | TX | Subcontractor |
| Deep South Construction & Salvage LLC | Belle Chasse | LA | Subcontractor |
| Delta Marine Construction, LLC | Deltaville | VA | Subcontractor |
| Delta Marine Support LLC | Gretna | LA | Subcontractor |
| Delta Railroad Construction Inc. | Ashtabula | OH | $0 |
| Depauli Engineering & Surveying, LLC | Gallup | NM | $0 |
